Wrench.



'No. 753,915. PATENTED MAR. 8,1904.

0. H. w. RELYEA.

WRENCH.

APPLICATION FILED NOV. 3.1903;

R0 MODEL.

' awuant'c v nn l i I No. 753,915.

UNITED STATES Patented March 8, 1904.

PATENT OFFICE.

CHARLES H. W. RELYEA, OF NORTH ADAMS, MICHIGAN, ASSIGNOR OF ONE-HALF TOGEORGE H. OORBETT, OF NORTH ADAMS, MICHIGAN.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 753,915, dated March 8,'1904.

Application filed November 3, 1903. Serial No. 179,720. (No model.)

7 To all whom it may concern:

I I pivot-jaw wrenches; and the object of the invention is to provide asimple and inexpenslve construction of wrench which can be quickly andeasily adjusted and when once adjusted will remain firm in thatposition.

With these objects in view the invention consists in the novel featuresof construction, combination, and arrangement, all of which will befully described hereinafter and pointed out in the claim.

In the drawings forming part of this specification, Figure l is aperspective view of a wrench constructed in accordance with myinvention. Fig. 2 is a vertical longitudinal sectional view. Fig. 3 is atransverse sectional 5 VlBW on the line 3 3 of Fig. 2. 1

In constructing a wrench in accordance with my invention I employ ashank A, which may be of any desired length and thickness and which isshaped into the rigid jaw B at one 3 end, and at the opposite end theshank is enlarged, as shown at C, said enlarged portion having aV-shaped slot D produced therein, thereby providing two rigid jaws E andF, the face of'said jaws being arranged upon an inclination, as shown,and the jaw F is provided with teeth, while the jaw E is preferablysmooth. The shank A is provided with integral ears G, which are arrangedupon opposite sides and project a considerable distance 4 beyond theupper face of the shank, as most clearly shown in Fig. 1, and pivotedbetween the said ears is the pivot-jaw H, the inner face of the free endof which is provided with teeth, as shown at H, while the opposing faceBof the rigid jaw B is smooth or devoid of teeth. A leaf-spring issecured to the upper face of the shank by means of bolts I, said endbeing secured between the ears G, and the free end of said spring bearsupon the under side of the pivot-jaw at a point slightly in advance ofits central portion for the purpose of normally holding the saidpivot-jaw open or extended. A keeper K, also integral with the rigidjaw, extends over the forward end of the pivot-j aw and limits itsoutward movement, and sliding upon end with depending legs L Which slideupon opposite sides of the pivot-jaw, said legs carrying a pin M, whichworks in a longitudinal slot M, produced in the pivot-jaw and extendingparallel with the upper face thereof, said slot and pin serving to limitthe front and rear movements of the wedge-block. It will thus be seenthat in order to adjust the wrench it is only necessary to press thepivot-j aw toward the rigid jaw and then slide the wedge-block forwardlyor rearwardly to the proper position, and the moment pressure is removedfrom the pivot-jaw the'spring I will force the said pivot jawdownwardly, bringing the wedgedolock into engagement with the keeper andsecurely lock the pivot-jaw in its adjusted position. I

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

A wrench of the kind described comprising a shank having a fixed jawintegral therewith, integral ears and an integral keeper, a pivoted jawarranged within the keeper and between the ears, a spring secured to theshank between the ears, the free end of which is adapted to bear uponthe inner side of the pivot-jaw and a wedge-block adapted to slide uponthe outer face of the pivot-jaw, the inclined face of said jaw andconnected to the said depending legs, as and for the purpose described.

CHARLES H. W. RELYEA.

Witnesses:

J. S. BLAOKMER, EUDUAR TAYLOR.

